| 重载车轮钢显微组织与氢渗透特性 |
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| 引用本文： | 王飞飞,沈晓辉,陈刚,张庆安.重载车轮钢显微组织与氢渗透特性[J].安徽工业大学学报,2013(4):378-381. |
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| 作者姓名： | 王飞飞 沈晓辉 陈刚 张庆安 |
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| 作者单位： | [1]安徽工业大学材料科学与工程学院,安徽马鞍山243002 [2]马鞍山钢铁股份有限公司技术中心,安徽马鞍山243010 |
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| 基金项目： | 国家高技术研究发展计划“863”重点项目（2008AA030703） |
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| 摘 要： | 利用金相显微术、扫描电镜、透射电镜以及X射线衍射测量技术研究1种重载车轮钢的显微组织,采用电化学方法探讨它的氢渗透特性.研究表明,实验用重载车轮钢的显微组织由质量分数分别为95.7％的层片状珠光体和4.3％的先共析铁素体组成,20℃时氢在实验钢中的扩散系数D0为1.96×10-6 cm2·s-1,该钢产生氢鼓泡的临界氢质量分数为3.64×10-6.
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| 关 键 词： | 车轮钢 氢渗透 氢鼓泡 |
Microstructure and Hydrogen Permeation Characteristics of Wheel Steel for Heavy Haul Trains |
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| WANG Feifei;SHEN Xiaohui;CHEN Gang;ZHANG Qingan.Microstructure and Hydrogen Permeation Characteristics of Wheel Steel for Heavy Haul Trains[J].Journal of Anhui University of Technology,2013(4):378-381. |
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| Authors: | WANG Feifei;SHEN Xiaohui;CHEN Gang;ZHANG Qingan |
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| Affiliation: | WANG Feifei;SHEN Xiaohui;CHEN Gang;ZHANG Qingan(School of Materials Science and Engineering, Anhui University of Technology, Ma＇anshan 243002, China;Technical Center, Ma＇anshan Iron and Steel Co.Ltd., Ma＇anshan 243010, China) |
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| Abstract: | The microstructure of a heavy haul wheel steel was studied by using metallographic microscopy,scanning electron microscopy （SEM）,transmission electron microscopy （TEM） and X-ray diffraction （XRD） measurement.Meanwhile its hydrogen permeation characteristics were also investigated with electrochemical method.It is found the investigated steel consists of 95.7％（mass percent） of lamellar pearlite and 4.3％ of proeatectoid ferrite.At 20℃,the hydrogen diffusion coefficient D0 in the steel investigated is 1.96×10-6 cm2·s-1 and the critical hydrogen mass fraction for hydrogen blistering is 3.64×10-6. |
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| Keywords: | wheel steel hydrogen permeation hydrogen blistering |
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